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Finite element stress analysis of a reinforced high-strength concrete column in severe fires

The objective of this study is to quantify the development of thermal stress states that account for the occurrence of moisture-induced explosive spalling of reinforced high-strength concrete structures under rapid heating conditions. Obtained from finite difference models of simulating coupled heat...

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Published in:Computers & structures 2006-08, Vol.84 (21), p.1338-1352
Main Authors: Chung, Jae H., Consolazio, Gary R., McVay, Michael C.
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Language:English
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description The objective of this study is to quantify the development of thermal stress states that account for the occurrence of moisture-induced explosive spalling of reinforced high-strength concrete structures under rapid heating conditions. Obtained from finite difference models of simulating coupled heat and mass transport phenomena in heated reinforced concrete elements, transient temperature profiles are used as prescribed boundary conditions for subsequent finite element thermo-elastic stress analysis. A computational methodology using the theory of mixtures (volume averaging) is presented to compute thermally induced effective stresses that are potentially associated with thermal spalling of high-strength concrete.
doi_str_mv 10.1016/j.compstruc.2006.03.007
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ispartof Computers & structures, 2006-08, Vol.84 (21), p.1338-1352
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subjects Analytical and numerical techniques
Applied sciences
Building structure
Buildings. Public works
Computational techniques
Construction (buildings and works)
Exact sciences and technology
Finite element analysis
Fundamental areas of phenomenology (including applications)
Heat transfer
High-strength concrete
Mathematical methods in physics
Physics
Reinforced concrete structure
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
Temperature
Thermal analysis
Thermal spalling
title Finite element stress analysis of a reinforced high-strength concrete column in severe fires
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